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Re: Status of mapred* - MapReduce - [mail # user]
...Hello,  The mapred.* API will be fully supported in 2.x.  On Thu, Sep 12, 2013 at 12:49 AM, Jay Vyas  wrote:    Harsh J...
   Author: Harsh J, 2013-09-12, 00:59
Re: hadoop web UI security - MapReduce - [mail # user]
...What you're seeing is the right behavior for the auth type "simple". It just expects a username, and doesn't do anything other than that - i.e. there's no passwords/etc. or a user list to cr...
   Author: Harsh J, 2013-09-11, 16:07
Re: whether dfs.domain.socket.path is supported in Hadoop 1.1? - MapReduce - [mail # user]
...HDFS-347 introduced this feature, and it is currently only available in 2.1.x onwards.  On Wed, Sep 11, 2013 at 12:00 AM, Jun Li  wrote:    Harsh J...
   Author: Harsh J, 2013-09-10, 21:17
Re: modify hdfs block size - MapReduce - [mail # user]
...You cannot change the blocksize (i.e. merge or split) of an existing file. You can however change it for newer files, and also download and re-upload older files again with newer blocksize t...
   Author: Harsh J, 2013-09-10, 04:15
Re: Questions about BlockPlacementPolicy - MapReduce - [mail # user]
...In HDFS, currently, the replication factor is a file-level property and can't be controlled at a block level (at least on the metadata end).  On Tue, Sep 10, 2013 at 5:38 AM, ivan zhang...
   Author: Harsh J, 2013-09-10, 04:14
Re: Hadoop on IPv6 - MapReduce - [mail # user]
...For Hadoop JVMs, generally speaking, need to have the following in your hadoop-env.sh for HADOOP_OPTS:  export HADOOP_OPTS="-Djava.net.preferIPv4Stack=true $HADOOP_OPTS"  We also s...
   Author: Harsh J, 2013-09-09, 20:55
Re: Hadoop is hardcoded the prot into 8020 - MapReduce - [mail # user]
...Hi,  What port did you reconfigure it to, how did you do it, and what was the error you observed?  On Sun, Sep 8, 2013 at 11:10 AM, raju nair  wrote:    Harsh J...
   Author: Harsh J, 2013-09-08, 06:11
Re: Increasing Java Heap Space in Slave Nodes - MapReduce - [mail # user]
...You can pass that config set as part of your job (jobConf.set(…) or job.getConfiguration().set(…)). Alternatively, if you implement Tool, and use its grabbed Configruation, you can also pass...
   Author: Harsh J, 2013-09-07, 09:54
[expand - 1 more] - Re: Disc not equally utilized in hdfs data nodes - MapReduce - [mail # user]
...The spaces may be a problem if you are using the older 1.x releases. Please try to specify the list without spaces, and also check if all of these paths exist and have some DN owned director...
   Author: Harsh J, 2013-09-05, 17:50
Re: How to update the timestamp of a file in HDFS - MapReduce - [mail # user]
...There's no shell command (equivalent to Linux's touch) but you can use the Java API: http://hadoop.apache.org/docs/current/api/org/apache/hadoop/fs/FileSystem.html#setTimes(org.apache.hadoop...
   Author: Harsh J, 2013-09-05, 05:36
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